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ir_to_mesa: Add support for trunc/ceil/floor.

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This commit is contained in:
Eric Anholt 2010-05-19 16:02:00 -07:00
parent c45b615a37
commit c2014f03e8
2 changed files with 22 additions and 3 deletions
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9
ir_to_mesa.cpp
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@ -520,6 +520,15 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
this->result = this->create_tree(MB_TERM_sne_vec4_vec4, ir,
op[0], this->result);
break;
case ir_unop_trunc:
this->result = this->create_tree(MB_TERM_trunc_vec4, ir, op[0], NULL);
break;
case ir_unop_ceil:
this->result = this->create_tree(MB_TERM_ceil_vec4, ir, op[0], NULL);
break;
case ir_unop_floor:
this->result = this->create_tree(MB_TERM_floor_vec4, ir, op[0], NULL);
break;
default:
break;
}

16
mesa_codegen.brg
View file

@ -53,6 +53,9 @@
%term exp2_vec4
%term log_vec4
%term log2_vec4
%term trunc_vec4
%term ceil_vec4
%term floor_vec4
%term sin_vec4
%term cos_vec4
%term add_vec4_vec4
@ -71,7 +74,6 @@
%term sqrt_vec4
%term rsq_vec4
%term swizzle_vec4
%term trunc_vec4
# Each tree will produce stmt. Currently, the only production for
# stmt is from an assign rule -- every statement tree from
@ -159,6 +161,16 @@ vec4: swizzle_vec4(vec4) 1
reg);
}
vec4: trunc_vec4(vec4) 1 { ir_to_mesa_emit_op1(tree, OPCODE_TRUNC); }
vec4: ceil_vec4(vec4) 1 {
tree->left->src_reg.negate = ~tree->left->src_reg.negate;
ir_to_mesa_emit_op1(tree, OPCODE_FLR);
tree->src_reg.negate = ~tree->left->src_reg.negate;
}
vec4: floor_vec4(vec4) 1 { ir_to_mesa_emit_op1(tree, OPCODE_FLR); }
vec4: sin_vec4(vec4) 1
{
ir_to_mesa_emit_scalar_op1(tree, OPCODE_SIN,
@ -261,6 +273,4 @@ vec4: log2_vec4(vec4) 1
tree->left->src_reg);
}
vec4: trunc_vec4(vec4) 1 { ir_to_mesa_emit_op1(tree, OPCODE_TRUNC); }
%%